http://buddylindsey.com/upgrade-bash-to-4-on-os-x/
Unfortunately, Apple has decided to ship an old version of bash shell. When I go back and forth between linux and OSX sometimes I hit minor inconsistencies because of this. One big one is the git-prompt scripts. As such I finally decided to upgrade to version 4 of bash.
It is a very easy process, 2 minutes, and you are on your way. First, though you need homebrew installed and up-to-date.
Steps
Installation
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brew install bash |
Add it to Your Shells
You need to add it to your shells which is easy. Add the following line to `/etc/shells`
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/usr/local/bin/bash |
Change Your Shell
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chsh |
change the line that has Shell to the location that your newly brew installed bash is located.
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Shell: /usr/local/bin/bash |
Restart Terminal
Close your terminal and open it again.
Verification
To see your current version of bash do the following:
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echo $BASH_VERSION |
It should echo something like `4.2.45(2)-release`
Conclusion
It is that simple. I though it would be hard until I did it.